Federal courts have ruled that polygraph is not admissible as direct evidence during courtroom proceedings. However, there have also been rulings that it may be considered when standard rules of scientific evidence have been met. In other words, attorneys must file motions with the Judge to consider the admissibility of polygraph under the Daubert standard of evidence.  Judges can still choose to deny the admission of polygraph results. Attorneys must check within each jurisdiction to determine admissibility standards.